Scroll-sawing machine



(No Modei.) 2, Sheets-Sheet 1.

W. J. HULL;& W. E.-VARNEY.

SGROLL; SAWING MACHINE;

No. 296,693. Patented Apr. 8, 1884.

WITNESSES INVENTOR (No Model.) 3 SheetsSheet 2.

W. J. HULL & W. E. VARNEY.

SCROLL SAWING MACHINE.

N0. 296,693. Patented Apr. 8, 1884.

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(No Model.) v V s Sheets-Sheet 3. W. J. HULLKB W. E. VARNEY.

SCROLL SAWING MACHINE.

No. 296,693. Patented Apr. 8, 1884.

INVENTOR TTORNEYS WITNESSES Iran 4 STATES PATENT @rrrcn WAYNE J. 'HllLL, OF ALEXANDRIA, DAKOTA TERRITORY, AND XYILLIAM E. VARNEY, OF DAYTONVILLE, IOWA.

SCROLL-SAWING MACHINE.

SPECIFICATIQN forming part. of Letters Patent No. 296,693, dated April 8, 188%.

Application filed January 29, 1884. (No model.)

.To all whom it may concern.-

Be itknown that W6,WAYNE J. HULL, residing at Alexandria, inthc county of Hanson and Territory of Dakota, and WILLIAM VAR KEY, residing at Daytonville, in the county of Washington, State of Iowa, citizens of the United States, have invented certain new and useful Improvements in NooddVorkiug Machines; andwe do declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac companying drawings, and to letters or fig 1 5 ures of reference marked thereon, which form a part of this specification.

Figure l of the drawings is a representation of an end view of my machine. Fig, 2is a side view of the same. Fig. 3 is a transverse sectional view, and Fig. 4 is a plan view of the table.

This invention has relation to wood-working machines; and it consists in the construction and arrangement of parts, as will be herein- 2 5 after fully described, and particularly pointed out in the claims appended.

Referring by letter to the accon'ipanying drawings, A designates the bench or bed frame, which is of ordinary construct-ion,1on-

3 gitudinally siottedand flanged to receive the adj ustablc and removable mechanism usually employed. An ordinary treadlc or steam power may be used to drive the machinery.

The main mandrel, auxiliary mandrel,

3 5 clutch mechanism, and driving mechanism are the same as those port-ions of the machine as described in our Letters Patent No. 279,051, of June 5, 1888, woodworking machines, and are not broadiy claimed herein. Reference is,

0 however, made to said patent for a detailed description of said parts, which are partly shown herein.

B designates a frame which is clamped to the bed-frame A, and is adapted to slide 5 thereon when the clamp is loosened.

To use the scroll-saw with the driving inechanism, the frame 13 carrying the table 13, should be moved up until a crank-shaft, B, (which is threaded on its outer end,) engages the internally-threaded portion of the main shaft 1), the driving mechanism being operated to draw the male into the female screw, thus forming a connection between the main shaft Dand the crank-shaft B This crankshaft B has one of its hearings in the left-hand end E of the frame 13. F designates the right-hand end of the frame B The lefthand end E of the frame has secured to its left face vertical ways H, in which reciprocates abifurcated arm, H, which is provided 'atthe upper end of its bifurcation with a clamping-nut, H, for holding the lower end of the scroll-saw H, which works vertically. The lower portion of this bifurcated arm H passes through a bearing or guide, H, and its lower end is rigidly secured to a wrist-pin, 1*, upon which the lower end of a pitman-rod, I, articulates, the upper end of which is removably clamped by a hinge-clamp, 1*, held in place by a set-screw to the horizontal portion of a double crank, 1", upon the crank-shaft A circular metallic guard-plate, J, having a central perforation and a radial groove, J arranged in the lateral line of the table B, is let into the surface of said table, and is provided with an adjustable slide, J, having at its inner end vertical recesses, in which the back of the saw plays.

K designates an arm, the base of which is secured to the right-hand end of the benchframe A, and has a locking-pin, K passed through aperforation therein and into an aligned perforation in the end of the benchframc, to prevent it from accidentally turning out of place, but which, wheudesignedly removed, will permit said arm to be turned out of place when disconnected from the up per end of the scroll-saw. The free end of this arm K is provided with vertical ways K, in which a slotted slide, 1i, adjustably connected to a spring-arm, If, upon the arm K, works. The lower end of said vertical slotted slide K is provided atits lower end with a vertical recess, L to receive the upper end of the saw-blade, and a downwardly and in wardlyincline, L, to receive the cross-pin L, by which the saw is removabl y connected to the said blade.

In the vertical slot M is provided a bolt, M having a washer and a securingoint, by

IOO

which it may be adjusted to any point within said slot for the purpose of adjusting it to saws of different lengths.

The rear side of the vertical ways K is provided with a vertically-perforated bearing, N, in which a vertical rod, h, is adapted to be adjusted vertically. The lowerend of this rod N is provided with an adjustable bifurcated foot, N secured in place by a nut and washer upon its under face. Its solid end is provided with a vertical recess, in which the back of the scroll-saw plays when in operation. It may be adjusted back and forth to suit saws of different widths, and serves both as a guide and a brace for the same.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-- 1. In a wood-working machine, the combination of the arm K, provided at its free end with the vertical ways K, and the slotted slide K, adjustably connected to the springarm L the slide K being provided with the lateral recess L, intersected by the vertical recess L", the latter to receive the upper end of the saw-blade and the former to receive the cross-pin L by which the saw is removably connected to the slide K, substantially as specified.

2. In a wood-working machine, the combination, with the frame B carrying the table B, of the circular metallic guard-plate J,

having a central perforation and a radial groove, J ,arranged in the lateral line of the table B, let into the table, and provided with an adjustable slide, J having its inner end recessed vertically, and the scroll-saw and mechanism for operating the same, substantially as specified.

3. In a wood-working machine, the combination,With the frame 13 on thebench-frameA, and table B, located thereon, of the bifurcated arm H, arranged beneath the table, having the clamping-nut H at its upper end, crank I clamp 1*, the crank-shaft B having end bearings in the frame 13" and shaft D, pitman-rod I, connected at itsnpper end to the said crank, thearm K, rising from the frame, and provided with a spring-arm, U, the vertica1ly-s1otted slide K the adjustable bifurcated foot N and operating mechanism, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

IVAYNE J. HULL.

\Vitnesses:

F. B. FosrER, GEO. IV. WIMER. In testimony whereof I aifix my signature in presence of two witnesses.

WM. VARNEY. \Vitnesses:

G.'G. SIGLER, F. HERB. 

